HTP PHR199-55C - Manual (Page 51)

51
LP- 325 REV. 3.21.14
K. WIRING OF CASCADE SYSTEM COMMUNICATION BUS (PIONEER ONLY)
1. Use standard
CAT3 or CAT5
computer network
patch cables to
connect the
communication bus
between each of the
appliances. These
cables are readily
available at any office
supply, computer,
electronic,
department or
discount home supply
store in varying
lengths. If you
possess the skills you
can also construct
custom length cables.
2. It is recommended
to use the shortest length cable that will reach between the appliances and create a neat installation. Do not run unprotected cables
across the floor where they may become wet or damaged. Avoid running communication cables parallel and close to or against high
voltage (120 volt or greater) wiring. HTP recommends that the maximum length of communication bus cables not exceed 200 feet.
3. Route the communication cables through one of the knockouts in the cabinet.
4. Connect the appliances in a daisy chain configuration. It is best to wire the appliances using the shortest wire runs rather than trying
to wire them in the order that they are addressed. The communication bus jacks on the customer connection panel are interchangeable
so you can use either one or both in any order to connect the cable. If you have connected the appliances to each other properly (see
Figure 6
– Cascaded System, p. 24), two of the appliances will have single open connection ports.
L. CASCADE MASTER PUMP AND SENSOR WIRING (PIONEER ONLY)
1. Connect the system pump hot wire to the terminal marked 1.
2. Connect the system pump neutral to the terminal 2 and the pump ground wire to terminal 3.
3. Connect a jumper wire from the 120 VOLT terminal to terminal 9.
4. Connect the appliance pump to the terminals marked 8, 2, and 3.
5. Connect the system pipe sensor to the terminals marked 10 and 11.
6. Connect the outdoor sensor (if used) to the terminals marked 12 and 13.
7. Connect the signal to start the system to the terminals marked 14 and 15.
NOTE: This signal can come from a room thermostat or a dry contact closure. No power of any voltage should be fed into either of
these terminals.
M. CASCADE FOLLOWER PUMP AND SENSOR WIRING (PIONEER ONLY)
1. Connect the appliance pump to the terminals labeled 8, 2, and 3. If you are using an indirect fired water tank connected directly to
the follower appliance connect the pump for it to the 4, 5, and 6 terminals.
2. An alarm bell or light can be connected to the alarm contacts of the follower appliance. In the event of an alarm, the normally open
alarm contact may be used to turn a device on. The normally closed alarm contact may be used to turn a device off if the appliance
goes into lockout mode. The alarm contacts are rated 3 amps at 120 VAC.
3. To connect an alarm device, connect the power for the device to terminal 1. Connect the neutral or return of the alarm device to the
neutral terminal on the customer connection board.
NOTE: In a cascade system the alarm output of the appliance addressed as #1 will also be active if the master appliance has a lockout
condition. The alarm output of appliances addressed as 2-7 will only activate an alarm if a lockout condition occurs on that specific
appliance.
Figure 27 – Cascade Wiring